题目内容

______×
8
3
=
8
9
÷______=
3
2
-______=
4
5
+______．
3
8
×
8
3
=
8
9
÷
8
9
=
3
2
-
1
2
=
4
5
+
1
5
．
故答案为：
3
8
，
8
9
，
1
2
，
1
5
．
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相关题目
直接写出得数．
1
3
+
1
3
=		1-
2
5
=
5
8
-
3
8
=
1
7
+
3
7
+
2
7
=
1-
5
6
=
3
8
+
5
8
=
2
9
+
5
9
=		1-
5
12
-
7
12
=
3
4
-
1
2
=
1
6
+
2
3
=
1
2
-
1
3
=
3
8
+
3
8
-
5
8
=
直接写出得数．
1
3
+
5
6
=
1
8
×4=		0.4÷
2
5
=		0×1
1
3
=
12×
5
6
=		5-
3
5
=		4÷
1
5
=
2
7
÷
2
3
=
直接写出得数．
5
28
÷
1
5
=
1
5
÷3=		12×
2
3
=		2-
1
4
=
3
4
+
1
2
=
9
10
×
5
12
=		2÷
1
5
=
3
8
+
1
2
=
20÷
5
9
=
34
39
×
3
17
=
直接写得数．
2
5
+
1
2
=		3
3
4
-1.75=
3
5
÷
1
3
=
1
8
×
1
8
=
6
7
×
7
15
=
5
6
÷
1
2
=
1
4
÷
1
5
=
2
3
×0+3=		（
5
6
+
1
6
）×
3
4
=
直接写得数．
1
3
-
1
4
=
1
4
+
3
8
=
2
5
×30=
5
6
÷5=		2÷
2
3
=
470-407=13×50=8.64-5.04=500÷25=4.57+5.43=
在括号里填上合适的数．
______-
3
8
=0
4
5
-______=
1
5

1
3
+
1
()
=
2
3
．
5个
1
16
与8个
1
16
合并起来，结果是多少？
在括号里填上适当的分数．
3
10
+
2
5
=
3
10
+
()
10
=
()
()

5
8
-
7
12
=
()
24
-
()
()
=
()
()

4
5
-
3
4
=
()
()
-
()
()
=
()
()

1
4
+
3
10
=
()
()
+
()
()
=
()
()
．

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